Resilient support for an eccentric drive pin of disk drive appar

Details Resilient support for an eccentric drive pin of disk drive appar Resilient support for an eccentric drive pin of disk drive appar

1987-04-06

1988-07-19

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 99, G11B 17028

Patent

active

047589159

ABSTRACT:
A drive pin support mechanism for an apparatus for data transfer with a magnetic disk having a rigid hub of magnetic material attached centrally thereto, with the apparatus including an upstanding drive spindle for centering engagement in a central opening in the disk hub, a turntable rigidly mounted on the drive spindle and having a permanent magnet for attracting the disk hub and for holding the disk thereon, and a drive pin for driving engagement in an eccentric slot in the disk hub. The drive pin support mechanism includes a drive pin support spring fabricated from resilient sheet metal material and supported on the underside of the turntable for joint rotation therewith. The support spring is so configured as to permit the drive pin mounted thereon to slant in a direction opposite to the predetermined direction of rotation of the turntable. Also included is an abutment on the turntable for limiting the slanting of the drive pin during the operation of the apparatus in order to maintain the magnetic disk in constant angular relation to the turntable and to preclude instantaneous speed variations of the magnetic disk.

REFERENCES:
patent: 4445157 (1984-04-01), Takahashi
patent: 4649444 (1987-03-01), Ichihara
patent: 4672486 (1987-06-01), Bettini

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